Reuben ben Hoshke

Reuben Hoshke HaKohen was a Kabalist and rabbi of Prague. "Hoshke," his father's name, is a Polish diminutive for "Joshua," mistaken by G.B. De Rossi and Zunz for his family name.
He wrote:

Yalḳuṭ Re'ubeni, a kabbalistic work containing a collection of sayings taken from other kabbalistic works and arranged in alphabetical order Yalḳuṭ Re'ubeni ha-Gadol, a kabbalistic midrash on the Pentateuch arranged according to the order of the parashiyyot Davar Shebi-Ḳedushah, a manual of asceticism and repentance Oneg Shabbat, cabalistic reflections on the Sabbath laws, followed by an appendix entitled Derek Ḳabbalat Shabbat.